For cylindrical batteries, this symbol must be greater than 1.5% of the surface area. On batteries where the mark will be less than 0.5 cm x 0.5 cm, no marking is required on the battery, but still must be marked on the packaging with a minimum size of 1 cm x 1 cm. [pdf]
[FAQS about Marking on cylindrical lithium battery]
Integrated Energy Storage & Solar
Solutions Provider
Enter your energy storage project details, We will reply you in 24 hours.